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LT1940EFE#PBF - Analog Devices

Description: Conv DC-DC 3.6V to 25V Step Down Dual-Out 1.25V to 22V 1.4A/1.4A 16-Pin TSSOP EP Tube

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LT1940EFE#PBF - Analog Devices PCB footprint - Small Outline Packages - Small Outline Packages - FE Package 16-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG # 05-08-1663)
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3D Models
LT1940EFE#PBF - Analog Devices  - 3D model - Small Outline Packages - FE Package 16-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG # 05-08-1663)
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LT1940EFE#PBF Details

  • Manufacturer Part Number:

    LT1940EFE#PBF

  • Brand Name:

    Analog Devices Inc

  • Pbfree Code:

    No

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    TSSOP-16

  • Pin Count:

    16

  • Manufacturer Package Code:

    05-08-1663 (BA)

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Analog Devices Inc

  • YTEOL:

    8.5

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    25 V

  • Input Voltage-Min:

    3.6 V

  • Input Voltage-Nom:

    5 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    2

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    1.4 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HTSSOP

  • Package Equivalence Code:

    TSSOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.1 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    1350 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    4.4 mm

LT1940EFE#PBF Frequently Asked Questions (FAQs)

  • A 2-layer or 4-layer PCB with a solid ground plane and thermal vias under the IC is recommended. This helps to dissipate heat efficiently and reduce thermal resistance.
  • To ensure stability, use a minimum output capacitance of 10uF, and ensure that the output capacitor's ESR is less than 1 ohm. Additionally, use a low-ESR input capacitor and keep the input and output capacitors close to the IC.
  • The maximum input voltage rating is 28V, but it's recommended to operate the device within the specified input voltage range of 3.5V to 24V for optimal performance and reliability.
  • The LT1940EFE#PBF is rated for operation up to 125°C, but the device's performance and reliability may degrade at high temperatures. Ensure proper thermal management and consider derating the output current at high temperatures.
  • The output voltage ripple and noise can be calculated using the equations provided in the datasheet. Additionally, consider using a low-pass filter or adding a noise-reducing capacitor to minimize output voltage ripple and noise.

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LT1940EFE#PBF Overview

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About Analog Devices

Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries. Analog Devices’ product portfolio includes a wide range of ICs, modules, and subsystems.

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